This Spring Clip Nut is what was used on most Wheel Horses to fasten panels to the framework, Wheel Horse part# 107069, MW4474, MW4475. It is the same thickness as the original, and has a fully enclosed nut instead of the half nut used from the factory making it much stronger. We spent a lot of time finding the correct thin and flat nut that will not space up or bend the panels when mounting and make your restoration look the best it can be.